wifiblaster: enable pktgen.

Change-Id: Ic5591bf0567a6943acb4ed4fd26790ecd21a13ce
diff --git a/arch/arm/configs/gfrg200_defconfig b/arch/arm/configs/gfrg200_defconfig
index 3e5123c..ffce0fb 100644
--- a/arch/arm/configs/gfrg200_defconfig
+++ b/arch/arm/configs/gfrg200_defconfig
@@ -151,6 +151,7 @@
 CONFIG_BRIDGE=y
 CONFIG_VLAN_8021Q=y
 CONFIG_NET_SCHED=y
+CONFIG_NET_PKTGEN=m
 CONFIG_WIRELESS_EXT=y
 CONFIG_WEXT_SPY=y
 CONFIG_WEXT_PRIV=y